Question 933920
i.

{{{(4x^3-2x+1)+(-x^3+10x^2-8x-11)}}}

{{{4x^3-2x+1-x^3+10x^2-8x-11}}}

{{{4x^3-x^3+10x^2-2x-8x+1-11}}}

{{{3x^3+10x^2-10x-10}}}

{{{(3x^3+10x^2-10x)-10}}}...factor out common {{{x}}}

{{{x(3x^2+10x-10)-10}}}

{{{x((3x^2+10x)-10)-10}}}...factor out common {{{x}}}

{{{x(x(3x+10)-10)-10}}}